table of contents
DEV_ALLOC_NAME(9) | Network device support | DEV_ALLOC_NAME(9) |
NAME¶
dev_alloc_name - allocate a name for a device
SYNOPSIS¶
int dev_alloc_name(struct net_device * dev, const char * name);
ARGUMENTS¶
struct net_device * dev
const char * name
DESCRIPTION¶
Passed a format string - eg “ltd” it will try and find a suitable id. It scans list of devices to build up a free map, then chooses the first empty slot. The caller must hold the dev_base or rtnl lock while allocating the name and adding the device in order to avoid duplicates. Limited to bits_per_byte * page size devices (ie 32K on most platforms). Returns the number of the unit assigned or a negative errno code.
COPYRIGHT¶
July 2017 | Kernel Hackers Manual 4.12 |